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Location: Main > Optical Lenses > Spherical Plano Concave Lenses > POL-PCV-U-UVFS-400
Name: DIA25.4mm UVFS Plano-Concave Substrate(R-200mm)
P/N: POL-PCV-U-UVFS-400
Keywords:Dia25.4mm,EFL~-400mm,ROC-200mm,UVFS,Uncoated
Unit Price: S$130.00/pc
Available: In stock
Request: Add to Request List
Introduction:
If the lens is plano-concave, a collimated beam of light passing through the lens is diverged (spread); the plano-concave lens is thus called a negative or diverging lens. The beam after passing through the lens appears to be emanating from a particular point on the axis in front of the lens; the distance from this point to the lens is also known as the focal length, although it is negative with respect to the focal length of a converging lens.

Material: UV Fused Silica, deep UV grade
Operation Wavelength Range: 200 ~ 2000nm
Design Wavelength: 633nm (n=1.46), plano-concave
Diameter: 25.4, -0.2/+0.0mm
Edge Thickness: 6.0mm
Radius of Converture(ROC): - 200mm (concave surface)
Effective Focal Length: ~ -400mm
Surface Quality: 20/10 scratch and dig
Surface Error: < lambda/4 @ 633nm over clear aperture
Centration: <=3 arc min
Clear Aperture: >90% of outer surface
Edge Surface: Ground only
Chamfer: 0.2mmx45deg
Coating: Uncoated, double-surface
Application: UV negative lens and precvision substrate of concave laser mirrors for laser cavity use or imaging systems.